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Cai, Y; Li, HG; Qiu, TT; Piao, YS; Cai, Y (reprint author), Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China.
The effective field theory of nonsingular cosmology: II
Source PublicationEUROPEAN PHYSICAL JOURNAL C
Language英语
AbstractBased on the effective field theory (EFT) of cosmological perturbations, we explicitly clarify the pathology in nonsingular cubic Galileon models and show how to cure it in EFT with new insights into this issue. With the least set of EFT operators that are capable to avoid instabilities in nonsingular cosmologies, we construct a nonsingular model dubbed the Genesis-inflation model, in which a slowly expanding phase (namely, Genesis) with increasing energy density is followed by slow-roll inflation. The spectrum of the primordial perturbation may be simulated numerically, which shows itself a large-scale cutoff, as the large-scale anomalies in CMB might be a hint for.
2017
Volume77Issue:6Pages:369
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1140/epjc/s10052-017-4938-y
Funding OrganizationNSFC [11575188, 11690021, 11405069, 11653002] ; NSFC [11575188, 11690021, 11405069, 11653002] ; NSFC [11575188, 11690021, 11405069, 11653002] ; NSFC [11575188, 11690021, 11405069, 11653002] ; Strategic Priority Research Program of CAS [XDA04075000, XDB23010100] ; Strategic Priority Research Program of CAS [XDA04075000, XDB23010100] ; Strategic Priority Research Program of CAS [XDA04075000, XDB23010100] ; Strategic Priority Research Program of CAS [XDA04075000, XDB23010100]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/22040
Collection理论物理所科研产出_SCI论文
Corresponding AuthorCai, Y (reprint author), Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China.
Recommended Citation
GB/T 7714
Cai, Y,Li, HG,Qiu, TT,et al. The effective field theory of nonsingular cosmology: II[J]. EUROPEAN PHYSICAL JOURNAL C,2017,77(6):369.
APA Cai, Y,Li, HG,Qiu, TT,Piao, YS,&Cai, Y .(2017).The effective field theory of nonsingular cosmology: II.EUROPEAN PHYSICAL JOURNAL C,77(6),369.
MLA Cai, Y,et al."The effective field theory of nonsingular cosmology: II".EUROPEAN PHYSICAL JOURNAL C 77.6(2017):369.
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